“…Following Barndorff-Nielsen and Shephard (2001), we specify the non-Gaussian OU process via its marginal distribution, which will be the inverse-Gaussian (which is self-decomposable and hence this is possible; e.g., see Sato 1999), with parameterization given in the previous subsection. It can be shown, for example, see Todorov, Tauchen, and Grynkiv (2011), that the Lévy measure of L t is given by…”